Functional principle and features
The smoke alarm device does not detect heat, gas, steam, fire or
flames.
People with impaired hearing may not be able to hear the alarm.
Alarms with additional optical signalling are available for such cases.
Particularly high electromagnetic radiation could impair the function
of the detector. For this reason, do not install the detector near
magnets or devices which produce electromagnetic radiation.
The smoke alarm device operates in accordance with the optical
principle (photoelectric reflection) and features a measurement
chamber in which infiltrating smoke particles are measured.
If the alarm threshold is exceeded, a loud acoustic alarm sounds.
The alarm is switched off as soon as the measurement chamber is
free of smoke again.
10